The world is for the first time on the verge of being able to protect humans against Ebola, the World Health Organization (WHO) said on Friday, as data from a trial in Guinea showed a vaccine was 100 percent effective.
Initial results from the trial, which tested Merck and NewLink Genetics' VSV-ZEBOV vaccine on some 4,000 people who had been in close contact with a confirmed Ebola case, showed 100 percent protection after 10 days.